Answer:
Answer a) Force on A equal to force on B
Answer a) The electric field points to the left in the location A
Explanation:
12)
Recall that the magnitude of the electrostatic force is given by:
therefore in magnitude it is the same for charge q than for charge Q.
(Answer a for the first problem - 12)
13)
Recall that the electric filed points outwards for a positive charge, therefore at the location of charge q, the field must be pointing towards the left.
Answer:
Explanation:
Given
mass of saturated liquid water
at specific volume is
(From Table A-4,Saturated water Temperature table)
Final Volume
Specific volume at this stage
Now we see the value and find the temperature it corresponds to specific volume at vapor stage in the table.
The concepts required to solve this problem are those related to the conservation of the angular momentum and the moment of inertia of the disk. We will begin by calculating the moment of inertia of the disc, then the moment of inertia of the disc after the two two blocks hits and sticks to the edges of the turn table. In the end we will apply the conservation theorem.
The radius is given as,
When a block falls from above and sticks to the turn table, the moment inertia of the turntable increases.
Since two blocks are stick to the turn table, the total final moment of inertia of the turntable is the sum moment of inertias of individual turntable, and two blocks.
The moment of inertia of each block is
Total moment of inertia of two block is
The final moment of inertia of the turn table is
From the conservation of the angular momentum, the initial angular momentum of the system is equal to final angular momentum of the system,
Rearrange the equation we have that
The magnitude of the turntable's angular velocity is 66.67rpm